CN104522820B - A kind of mixing fruits and vegetables fermented product and preparation method thereof - Google Patents

A kind of mixing fruits and vegetables fermented product and preparation method thereof Download PDF

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CN104522820B
CN104522820B CN201510025752.8A CN201510025752A CN104522820B CN 104522820 B CN104522820 B CN 104522820B CN 201510025752 A CN201510025752 A CN 201510025752A CN 104522820 B CN104522820 B CN 104522820B
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vegetables
zymotic fluid
mixing
fruits
lactobacillus
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CN104522820A (en
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蔡木易
谷瑞增
鲁军
陆路
潘兴昌
董哲
林峰
马勇
徐亚光
马永庆
金振涛
陈亮
刘文颖
魏颖
张海欣
刘艳
马涛
曹珂璐
姜思萌
王憬
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China National Research Institute of Food and Fermentation Industries
Perfect China Co Ltd
Perfect Guangdong Commodity Co Ltd
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China National Research Institute of Food and Fermentation Industries
Perfect China Co Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/38Other non-alcoholic beverages
    • A23L2/382Other non-alcoholic beverages fermented
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

The present invention provides a kind of mixing fruits and vegetables fermented product and preparation method thereof.Described method includes 1) obtain mixing fruits and vegetables liquid after clean for mixing fruits and vegetables crushing, it is added thereto to pectase and cellulase carries out enzymolysis, it is thus achieved that enzymolysis liquid;2) after adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, access Leuconostoc mesenteroides and carry out the first fermentation, when the pH value of zymotic fluid reduces by more than 0.5, it is thus achieved that the first zymotic fluid;3) after adding carbon source and nitrogen source in described first zymotic fluid, accessing compound lactobacillus and carry out the second fermentation, described compound lactobacillus includes streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum, when zymotic fluid total sugar content is less than 3wt%, it is thus achieved that the second zymotic fluid;4) by centrifugal after described second zymotic fluid mixing, after centrifuged supernatant homogeneous, sterilizing, mixing fruits and vegetables fermented product is prepared.The present invention program can obtain in shorter fermentation time to be had compared with low sugar contents, in good taste, the mixing fruits and vegetables fermented product of unique flavor.

Description

A kind of mixing fruits and vegetables fermented product and preparation method thereof
Technical field
The present invention relates to a kind of fermented product and preparation method thereof, particularly relate to a kind of mixing fruits and vegetables fermentation system Product and preparation method thereof.
Background technology
Vegetables and types of fruits are various, and the food composition in China's resident's meals is than respectively 33.7% He 8.4%, it is the important component part of meals.Vegetables moisture content is many, and energy is low, rich in phytochemicals, It is to provide the important sources of the trace element of needed by human, dietary fiber and natural anti-reflecting oxide.Wherein stem, Leaf, flower vegetables, be carrotene, vitamin C, vitamin B2, mineral matter and dietary fiber Good source.The lighter vegetables of the carrotene of dark vegetable, riboflavin and Vitamin C content are high, and And containing more phytochemicals.Fruit moisture content 85%~90%, be needed by human vitamin, Mineral matter and the important sources of dietary fiber.Wherein brassicaceous vegetable such as wild cabbage, cauliflower, cabbage etc., Containing phytochemicals such as armaticity isothiocyanates, it is mainly to press down cancer with what glycoside forms existed Point.
Fruit carbohydrate containing is many compared with vegetables, mainly exists with disaccharide and monose, fruit contain in organic Acid content is also enriched than vegetables, such as tartaric acid, citric acid, malic acid, tartaric acid etc., human body can be stimulated to disappear Changing glandular secretion, improve a poor appetite, beneficially the digestion of food, organic acid stably has ascorbic simultaneously Protective effect.Fruit or vegetables all have special biologically active and nutritive value with them, constitute Health indispensable meals constituent.
Generally vegetables and fruit are to eat raw, also have some researchers both domestic and external attempt developing vegetables and The fermented product of fruit, but the existing method preparing fruits and vegetables fermented product, such as beverage exists many Defect, such as: 1) fermentation time is long, Japan that occupation rate of market is higher and the enzyme beverage in Taiwan, its Fermentation period was commonly half a year to 3 years, 2) during fermentation ends, flavor substance lacks, cause acrid seriously, And in order to overcome this problem and ensure not contaminate miscellaneous bacteria in longer fermentation time, it usually needs will fermentation In liquid, sugar controls the level at up to 30-40%, and the highest sugared content so that even if the later stage is to fermentation Liquid is again allocated and also is difficult to meet carbon hydrate in the low-sugar drink that our country specifies in GB28050 The requirement of thing (sugared) content≤5%.
Therefore, how to provide a kind of method, can obtain in shorter fermentation time have relatively low sugar contents, Mixing fruits and vegetables fermented product in good taste, unique flavor becomes problem to be solved.
Summary of the invention
The invention provides a kind of preparation method mixing fruits and vegetables fermented product, by using specific enzymolysis Step, fermentation step, and fermentation strain, in shorter fermentation time obtain have relatively low sugar contents, In good taste, the mixing fruits and vegetables fermented product of unique flavor.
Present invention also offers a kind of mixing fruits and vegetables fermented product, made by above-mentioned fermentation process, tool Have excellent compared with low sugar contents and taste and flavor.
A kind of preparation method mixing fruits and vegetables fermented product that the present invention provides, comprises the steps:
1) obtain mixing fruits and vegetables liquid after clean for mixing fruits and vegetables crushing, be added thereto to pectase and cellulose Enzyme carries out enzymolysis, it is thus achieved that enzymolysis liquid, and described mixing fruits and vegetables include apple, pears, watermelon, sweet orange, Hu Luo Fore-telling, ternip, cucumber and tomato;
2), after adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, access Leuconostoc mesenteroides and carry out First fermentation, when the pH value of zymotic fluid reduces by more than 0.5, it is thus achieved that the first zymotic fluid;
3), after adding carbon source and nitrogen source in described first zymotic fluid, access compound lactobacillus and carry out second Ferment, described compound lactobacillus includes streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and plant Lactobacillus, when the total sugar content of zymotic fluid is less than 3wt%, it is thus achieved that the second zymotic fluid;
4) by centrifugal after described second zymotic fluid mixing, after centrifuged supernatant homogeneous, sterilizing, prepare mixed Close fruits and vegetables fermented product.
In the solution of the present invention, described carbon source is sugar, and described nitrogen source is collagen peptide, and described inorganic salts are One or more in calcium salt, phosphate, sylvite, manganese salt and magnesium salts.Above-mentioned carbon source, nitrogen source and nothing The use of machine salt, on the one hand can meet the needs of Leuconostoc mesenteroides, compound lactobacillus-fermencucumber, the opposing party Face will not produce harmful effect to the taste and flavor of later stage mixing fruits and vegetables fermented product.
In the detailed description of the invention of the present invention, step 1) in, described mixing fruits and vegetables are crushed to 40~ 80 mesh.Generally the pH value of mixing fruits and vegetables liquid is 4~6, the bright string of goldbeater's skin under this pH value condition Pearl bacterium energy normal fermentation.And mixing fruits and vegetables are crushed to 40~80 mesh, can promote to ferment when shorter In carry out, can guarantee that the mouthfeel of the mixing fruits and vegetables fermented product of last acquisition is excellent simultaneously, such as, have good Good stick-slip degree etc..The mixing fruit and vegetable materials wherein used is the raw material that fresh nothing is rotten.
In the scheme of the application, mixing fruits and vegetables have higher water content, are mixing fruits and vegetables after crushing Liquid, can not additionally add water.Certainly those skilled in the art can also contain according to the mixing fruits and vegetables that it uses The difference of the water yield, adds suitable water, such as can with water with the described fruits and vegetables weight ratio that mixes as 0.1-0.3:1 Ratio add water.
Further, step 1) in, the consumption of described pectase is every gram of mixing fruits and vegetables liquid 2~3 unit, The consumption of described cellulase is every gram of mixing fruits and vegetables liquid 2~3 unit, and controls described enzymolysis processing Temperature is 40~50 DEG C, and the time is 2~4h.
In the solution of the present invention, the apple that contains in described mixing fruits and vegetables, pears, watermelon, sweet orange, recklessly The ratio of radish, ternip, cucumber and tomato is to be the most suitably adjusted, as long as ensureing mixed The ratio of the enzyme closing fruits and vegetables gross weight and use meets above-mentioned requirements, can in the most described mixing fruits and vegetables To include, by weight, 25 parts of apples, 25 parts of pears, 15 parts of watermelons, 5 parts of sweet oranges, 15 parts of Hu trailing plants Fore-telling, 5 portions of ternips, 5 portions of cucumber, 5 portions of tomatoes.
In the another embodiment of the present invention, step 2) in, control in described enzymolysis liquid, base In the gross weight of described enzymolysis liquid, the addition of described carbon source is 5~10wt%, and the addition in described nitrogen source is 0.3~0.8wt%, the addition of described inorganic salts is 0.1~0.3wt%, and controls described first fermentation Temperature be 20~40 DEG C, shaking speed is 80~120r/min.
In another detailed description of the invention of the present invention, step 3) in, control to ferment described first In liquid, gross weight based on described first zymotic fluid, the addition of described carbon source is 3~5wt%, described nitrogen The addition in source is 0.3~0.8wt%, and controls streptococcus thermophilus in described compound lactobacillus, De Shi breast Bacillus subspecies bulgaricus, and the weight proportion between Lactobacillus plantarum is 9:6:(5~9), described The temperature of the second fermentation is 18~25 DEG C.In the second sweat, control the ratio of above-mentioned three kinds of bacterium, And fermentation time and temperature are to ensure that and complete fermentation within a short period of time and obtain and have relatively low sugar and contain Amount, in good taste, the key mixing fruits and vegetables fermented product of unique flavor.
In the scheme of the application, when the pH value of zymotic fluid reduces by more than 0.5, collect and obtain first Zymotic fluid.Further, can reduce in the range of 0.5-0.7 in the pH value of zymotic fluid, collect also Obtaining the first zymotic fluid, the first zymotic fluid obtained in above-mentioned pH value range is conducive to the later stage to obtain tool Have compared with low sugar contents, in good taste, the mixing fruits and vegetables fermented product of unique flavor.And this sweat Time is generally at 15-30 days.
In the scheme of the application, when the total sugar content of zymotic fluid is less than 3wt%, collects and obtain second Zymotic fluid.Further, can collect and obtain at the total sugar content of zymotic fluid in the range of 1-3wt% Obtaining the second zymotic fluid, the second zymotic fluid obtained within the above range, through the mixing fruit that subsequent step obtains Vegetables fermented product is in good taste, unique flavor.And the time of this sweat is generally at 15-33 days.
Further, in above-mentioned second sweat, those skilled in the art can be during the fermentation Stir or do not stir.Preferably, in described second sweat, stirred 60 minutes every 24 hours, Shaking speed is 45-55r/min.Control above-mentioned stirring condition, mixing fruits and vegetables fermentation system can be optimized further The taste and flavor of product.
Further, step 4) in, centrifugal condition can be 2000-6000g, 10-30 minute, goes out Bacterium can use the UHTS that fermented product field is conventional, pasteurization etc..
Further, control in step 2) in, Leuconostoc mesenteroides described in every 1000mL enzymolysis liquid Inoculum concentration is 1 × 107~1 × 109
Further, control in step 3) in, compound described in the first zymotic fluid described in every 1000mL The inoculum concentration of lactic acid bacteria is 1 × 107~1 × 109
In the detailed description of the invention of the present invention, inoculate described Leuconostoc mesenteroides, streptococcus thermophilus, Before lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum, divide under the conditions of being additionally included in 35-37 DEG C Above-mentioned bacterial strains is not cultivated in expanding culture medium the step of 10-12 hour;
The composition of described expansion culture medium includes: by weight, the Gly-His-Lys of 0.05-0.22 part, the nothing of 2-5 part Machine salt, and the Tween 80 of 0.1 part, and the water of 90-97 part;Described inorganic salts include sodium salt, calcium One or more in salt, manganese salt, sylvite and magnesium salts.
Further, described Gly-His-Lys can be collagen peptide powder.
Further, the composition of described expansion culture medium includes: by weight, the fish skin collagen peptide of 0.1 part Powder, the sodium acetate of 3 parts, the dipotassium hydrogen phosphate of 0.01-0.15 part, the Tween 80 of 0.1 part, and 90 parts Water.
The present invention uses above-mentioned expansion culture medium to be the training with specific composition for the application sweat Support base, the orientation optimization to above-mentioned bacterial strains state can be realized so that enter enzymolysis liquid or fermentation at post incoulation After in liquid, being advantageously implemented fermentation complete in shorter time and simultaneously obtain have relatively low sugar contents, In good taste, the mixing fruits and vegetables fermented product of unique flavor.
A kind of mixing fruits and vegetables fermented product that the present invention provides, prepares according to described preparation method.
The scheme that the present invention provides has the advantage that
1, a kind of preparation method mixing fruits and vegetables fermented product that the present invention provides, can be at shorter fermentation time In ferment compared with the mixing fruits and vegetables of low sugar contents, in good taste, unique flavor as within about 50-60 days, obtained to have Goods, can improve the production efficiency of mixing fruits and vegetables fermented product, reduce production cost, and can also expire The requirement of carbohydrate (sugared) content≤5% in the low-sugar drink of regulation in foot GB28050.
2, the mixing fruits and vegetables fermented product that the present invention provides, sugar content is low, in good taste, excellent in flavor, no Need to carry out extra complicated allotment and i.e. can be used for filling, production cost can be reduced further, reduce and add The use of agent, it is thus achieved that healthy, green mixing fruits and vegetables fermented product.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the reality of the present invention Execute example, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described Embodiment be a part of embodiment of the present invention rather than whole embodiments.Based on the reality in the present invention Executing example, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Each bacterial strain that various embodiments of the present invention are used, collagen peptide, and pectase, cellulase Commercially available.Pectase-enzyme activity mean value is 1-3 ten thousand unit;The vigor mean value of cellulase is 1-3 Ten thousand units.
Embodiment 1
1) mixing fruits and vegetables are broken and prepare enzymolysis liquid
Mixing fruits and vegetables (are included apple, pears, watermelon, sweet orange, carrot, ternip, cucumber and western red Persimmon) clean be crushed to 40 mesh, obtain mix fruits and vegetables liquid, be added thereto to pectase and cellulase carried out Enzymolysis, the consumption controlling described pectase is every gram of mixing fruits and vegetables liquid 2 unit, the use of described cellulase Amount is every gram of mixing fruits and vegetables liquid 2 unit, at a temperature of 40 DEG C, enzymolysis 3h, it is thus achieved that enzymolysis liquid.
2) the first fermentation
Adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, wherein said nitrogen source is collagen peptide;Control Making in described enzymolysis liquid, the addition of described carbon source is 5wt%, and the addition in described nitrogen source is 0.3 Wt%, the addition of described inorganic salts is 0.1wt%, then accesses Leuconostoc mesenteroides, every 1000mL The inoculum concentration of Leuconostoc mesenteroides described in enzymolysis liquid is 1 × 107, at a temperature of 35 DEG C, 100r/min's Carry out the first fermentation under shaking speed, when the pH value of zymotic fluid reduces 0.5, prepare the first zymotic fluid; Record this first fermentation time used.
3) the second fermentation
In described first zymotic fluid, add carbon source and nitrogen source, control in described first zymotic fluid, described The addition of carbon source is 5wt%, and the addition in described nitrogen source is 0.8wt%, then accesses compound lactobacillus Carrying out the second fermentation, described in every 1000mL, described in the first zymotic fluid, the inoculum concentration of compound lactobacillus is 1 ×107, described compound lactobacillus includes that ratio is the streptococcus thermophilus of 9:6:9, Lactobacillus delbrueckii Bao Jiali Sub-subspecies, and Lactobacillus plantarum, then ferment, when the total sugar content of zymotic fluid is low under the conditions of 18 DEG C When 3wt%;Record this second fermentation time used.
4) mixing fruits and vegetables fermented product is obtained
By centrifugal after described second zymotic fluid mixing, with 4000g centrifugal force 15 minutes, take supernatant After homogeneous, sterilizing, prepare mixing fruits and vegetables fermented product.
5) result:
AAS is used to record 4) the middle polyoses content mixed in fruits and vegetables fermented product obtained, knot Fruit is shown in Table 1.
Enzymolysis time 3 hours in the present embodiment method, first 30 days used times of fermentation, the second fermentation used time 24 days, about 54 days total times.
Further, above-mentioned mixing fruits and vegetables fermented product is carried out tasting by the trial test group being made up of 10 people to be evaluated, The results are shown in Table 1.
Embodiment 2
1) mixing fruits and vegetables are broken and prepare enzymolysis liquid
Mixing fruits and vegetables (are included apple, pears, watermelon, sweet orange, carrot, ternip, cucumber and western red Persimmon) clean be crushed to 60 mesh, obtain mix fruits and vegetables liquid, be added thereto to pectase and cellulase carried out Enzymolysis, the consumption controlling described pectase is every gram of mixing fruits and vegetables liquid 2.5 unit, described cellulase Consumption is every gram of mixing fruits and vegetables liquid 2.5 unit, at a temperature of 45 DEG C, enzymolysis 2h, it is thus achieved that enzymolysis liquid.
2) bacterial strain expands cultivation
By Leuconostoc mesenteroides, streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and plant breast Bacillus, respectively under the conditions of 35-37 DEG C, is cultivated 10-12 hour, with to above-mentioned bacterial strains in expanding culture medium It is oriented optimization;
The composition of described expansion culture medium includes: by weight, the Gly-His-Lys of 0.05-0.22 part, the nothing of 2-5 part Machine salt, and the Tween 80 of 0.1 part, and the water of 90-97 part;Described inorganic salts include sodium salt, calcium One or more in salt, manganese salt, sylvite and magnesium salts.
3) the first fermentation
Adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, wherein said nitrogen source is fish skin collagen peptide; Controlling in described enzymolysis liquid, the addition of described carbon source is 8wt%, and the addition in described nitrogen source is 0.5wt%, the addition of described inorganic salts is 0.15wt%, then accesses Leuconostoc mesenteroides, every 1000mL The inoculum concentration of Leuconostoc mesenteroides described in enzymolysis liquid is 1 × 109, at a temperature of 20 DEG C, 80r/min shakes Carry out the first fermentation under bed rotating speed, when the pH value of zymotic fluid reduces 0.6, prepare the first zymotic fluid; Record this first fermentation time used.
4) the second fermentation
In described first zymotic fluid, add carbon source and nitrogen source, control in described first zymotic fluid, described The addition of carbon source is 3wt%, and the addition in described nitrogen source is 0.5wt%, then accesses compound lactobacillus Carrying out the second fermentation, described in every 1000mL, described in the first zymotic fluid, the inoculum concentration of compound lactobacillus is 1 ×109, described compound lactobacillus includes that ratio is the streptococcus thermophilus of 9:6:7, Lactobacillus delbrueckii Bao Jiali Sub-subspecies, and Lactobacillus plantarum, then ferment under the conditions of 20 DEG C, and every stirring in 24 hours 60 minutes, shaking speed was 45-55r/min, when the total sugar content of zymotic fluid is less than 2.5%;Record should Second fermentation time used.
5) mixing fruits and vegetables fermented product is obtained
By centrifugal after described second zymotic fluid mixing, with 5000g centrifugal force 15 minutes, take supernatant After homogeneous, sterilizing, prepare mixing fruits and vegetables fermented product.
6) result:
Method same as in Example 1 is used to record 4) the middle polysaccharide mixed in fruits and vegetables fermented product obtained Content, the results are shown in Table 1.
Enzymolysis time 2 hours in the present embodiment method, first 29 days used times of fermentation, the second fermentation used time 21 days, about 50 days total times.
Further, above-mentioned mixing fruits and vegetables fermented product is carried out tasting by the trial test group being made up of 10 people to be evaluated, The results are shown in Table 1.
Embodiment 3
1) mixing fruits and vegetables are broken and prepare enzymolysis liquid
Will mixing fruits and vegetables (include, by weight, 25 portions of apples, 25 portions of pears, 15 portions of watermelons, 5 parts sweet Orange, 15 portions of carrots, 5 portions of ternips, 5 portions of cucumber, 5 portions of tomatoes) clean be crushed to 80 mesh, To mixing fruits and vegetables liquid, it is added thereto to pectase and cellulase carries out enzymolysis, control described pectase Consumption is every gram of mixing fruits and vegetables liquid 3 unit, and the consumption of described cellulase is that every gram of mixing fruits and vegetables liquid 3 is single Position, at a temperature of 50 DEG C, enzymolysis 4h, it is thus achieved that enzymolysis liquid.
2) bacterial strain expands cultivation
By Leuconostoc mesenteroides, streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and plant breast Bacillus, respectively under the conditions of 35-37 DEG C, is cultivated 10-12 hour, with to above-mentioned bacterial strains in expanding culture medium It is oriented optimization;
The composition of described expansion culture medium includes: by weight, the fish skin collagen Gly-His-Lys of 0.1 part, 3 parts Sodium acetate, the dipotassium hydrogen phosphate of 0.01-0.15 part, the Tween 80 of 0.1 part, and the water of 90 parts.
3) the first fermentation
Adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, wherein said nitrogen source is collagen peptide;Control Making in described enzymolysis liquid, the addition of described carbon source is 10wt%, and the addition in described nitrogen source is 0.8 Wt%, the addition of described inorganic salts is 0.3wt%, then accesses Leuconostoc mesenteroides, every 1000mL The inoculum concentration of Leuconostoc mesenteroides described in enzymolysis liquid is 1 × 108, at a temperature of 40 DEG C, 120r/min shakes Carry out the first fermentation under bed rotating speed, when the pH value of zymotic fluid reduces 0.7, prepare the first zymotic fluid; Record this first fermentation time used.
4) the second fermentation
In described first zymotic fluid, add carbon source and nitrogen source, control in described first zymotic fluid, described The addition of carbon source is 5wt%, and the addition in described nitrogen source is 0.3wt%, then accesses compound lactobacillus Carrying out the second fermentation, described in every 1000mL, described in the first zymotic fluid, the inoculum concentration of compound lactobacillus is 1 ×108, described compound lactobacillus includes that ratio is the streptococcus thermophilus of 9:6:5, Lactobacillus delbrueckii Bao Jiali Sub-subspecies, and Lactobacillus plantarum, then ferment, when the total sugar content of zymotic fluid is low under the conditions of 25 DEG C When 3wt%;Record this second fermentation time used.
5) mixing fruits and vegetables fermented product is obtained
By centrifugal after described second zymotic fluid mixing, with 4000g centrifugal force 15 minutes, take supernatant After homogeneous, sterilizing, prepare mixing fruits and vegetables fermented product.
6) result:
Method same as in Example 1 is used to record 4) the middle polysaccharide mixed in fruits and vegetables fermented product obtained Content, the results are shown in Table 1.
Enzymolysis time 3 hours in the present embodiment method, first 23 days used times of fermentation, the second fermentation used time 25 days, about 48 days total times.
Further, above-mentioned mixing fruits and vegetables fermented product is carried out tasting by the trial test group being made up of 10 people to be evaluated, The results are shown in Table 1.
Reference examples 1
Sweat embodiment 1 simultaneously, difference is, the institute added in described enzymolysis liquid and zymotic fluid Stating nitrogen source is casein, beef extract, dusty yeast;Described compound lactobacillus includes that ratio is 24:16:60's Streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum;
First fermentation is when the pH value of zymotic fluid reduces by more than 0.5, and the second fermentation contains when the total reducing sugar of zymotic fluid When amount is less than 3wt%, records fermentation time respectively, and measure total sugar content in the fermented product being finally made, Assay method, with embodiment 1, the results are shown in Table 1.
Enzymolysis time 3 hours in the present embodiment method, first 50 days used times of fermentation, the second fermentation used time 100 days, about 150 days total times.
Above-mentioned mixing fruits and vegetables fermented product is carried out tasting by the trial test group being made up of 10 people to be evaluated, and the results are shown in Table 1。
Reference examples 2
Sweat embodiment 1 simultaneously, difference is, the institute added in described enzymolysis liquid and zymotic fluid Stating nitrogen source is casein, beef extract, dusty yeast;Described compound lactobacillus include ratio be 12:8:80 addicted to Hot streptococcus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum.
First fermentation is when the pH value of zymotic fluid reduces by more than 0.5, and the second fermentation contains when the total reducing sugar of zymotic fluid When amount is less than 3wt%, record fermentation time respectively;And measure total sugar content in the fermented product being finally made, Assay method, with embodiment 1, the results are shown in Table 1.
Enzymolysis time 3 hours in the present embodiment method, first 50 days used times of fermentation, the second fermentation used time 90 days, about 140 days total times.
Above-mentioned mixing fruits and vegetables fermented product is carried out tasting by the trial test group being made up of 10 people to be evaluated, and the results are shown in Table 1。
Table 1 Fermentation Process of Parameter measures and fermented product marking result
As seen from the results in Table 1: employing collagen peptide is as nitrogen source, and uses the thermophilic of special ratios scope Streptococcus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum can significantly shorten fermentation time, And acquisition has compared with low sugar contents, in good taste, the mixing fruits and vegetables fermented product of unique flavor.In inoculation institute State Leuconostoc mesenteroides, streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum Before, respectively above-mentioned bacterial strains is cultivated 10-12 hour in expanding culture medium under the conditions of 35-37 DEG C, have It is beneficial to realize fermentation complete in shorter time and obtain the mixing fruits and vegetables with more excellent taste and flavor Fermented product.

Claims (8)

1. the preparation method mixing fruits and vegetables fermented product, it is characterised in that comprise the steps:
1) obtain mixing fruits and vegetables liquid after clean for mixing fruits and vegetables crushing, be added thereto to pectase and cellulose Enzyme carries out enzymolysis, it is thus achieved that enzymolysis liquid, and described mixing fruits and vegetables include apple, pears, watermelon, sweet orange, Hu Luo Fore-telling, ternip, cucumber and tomato;
2), after adding carbon source, nitrogen source and inorganic salts in described enzymolysis liquid, access Leuconostoc mesenteroides and carry out First fermentation, when the pH value of zymotic fluid reduces by more than 0.5, it is thus achieved that the first zymotic fluid;
3), after adding carbon source and nitrogen source in described first zymotic fluid, access compound lactobacillus and carry out second Ferment, described compound lactobacillus includes streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and plant Lactobacillus, when the total sugar content of zymotic fluid is less than 3wt%, it is thus achieved that the second zymotic fluid;
4) by centrifugal after described second zymotic fluid mixing, after centrifuged supernatant homogeneous, sterilizing, prepare mixed Close fruits and vegetables fermented product;
Described carbon source be sugar, described nitrogen source is collagen peptide, described inorganic salts be calcium salt, phosphate, sylvite, One or more in manganese salt and magnesium salts;
Step 3) in, control in described first zymotic fluid, gross weight based on described first zymotic fluid, institute The addition stating carbon source is 3~5wt%, and the addition in described nitrogen source is 0.3~0.8wt%, and controls Streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum in described compound lactobacillus Between weight proportion be 9:6:(5~9), described second fermentation temperature be 18~25 DEG C.
Preparation method the most according to claim 1, it is characterised in that step 1) in, described fruit The consumption of glue enzyme is every gram of mixing fruits and vegetables liquid 2~3 unit, and the consumption of described cellulase is every gram of mixing fruit Vegetables liquid 2~3 unit, and the temperature controlling described enzymolysis processing is 40~50 DEG C, and the time is 2~4h.
Preparation method the most according to claim 1, it is characterised in that step 2) in, control In described enzymolysis liquid, gross weight based on described enzymolysis liquid, the addition of described carbon source is 5~10wt%, institute The addition stating nitrogen source is 0.3~0.8wt%, and the addition of described inorganic salts is 0.1~0.3wt%, and The temperature controlling described first fermentation is 20~40 DEG C, and shaking speed is 80~120r/min.
Preparation method the most according to claim 1, it is characterised in that in described second sweat, Stirring 60 minutes every 24 hours, shaking speed is 45-55r/min.
5. according to the preparation method described in claim 1 or 3, it is characterised in that control in step 2) In, described in every 1000mL enzymolysis liquid, the inoculum concentration of Leuconostoc mesenteroides is 1 × 107~1 × 109
Preparation method the most according to claim 1, it is characterised in that control in step 3) in, often Described in 1000mL, the inoculum concentration of compound lactobacillus described in the first zymotic fluid is 1 × 107~1 × 109
Preparation method the most according to claim 1, it is characterised in that at the inoculation bright string of described goldbeater's skin Before pearl bacterium, streptococcus thermophilus, lactobacillus delbruockii subspecies bulgaricus, and Lactobacillus plantarum, also wrap Include the step cultivated in expanding culture medium by above-mentioned bacterial strains respectively under the conditions of 35-37 DEG C 10-12 hour;
The composition of described expansion culture medium includes: by weight, the Gly-His-Lys of 0.05-0.22 part, the nothing of 2-5 part Machine salt, and 0.1 part of Tween 80, and the water of 90-97 part;Described inorganic salts include sodium salt, calcium salt, One or more in manganese salt, sylvite and magnesium salts.
8. a mixing fruits and vegetables fermented product, it is characterised in that arbitrary described according to claim 1 to 7 Preparation method prepare.
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